Fiddlerman said
 I may find some time in the future to jot down the notes, but I have a feeling there are plenty available. 

I've just discovered this thread. Haven't read any of it yet. I looked around for versions of the piece a few years back and found a couple, in very different keys, neither especially convincing, so I'll trawl this thread for more useful information.

Found them - they are both in A, but very different intros and rhythms. This jpeg is probably the worse of the two

And the attached pdf is probably the better of the two.

Yeah, I think a formal official version of it is required (the pdf may be such a thing already) - bluegrass players, even when they are as good as Michael Cleveland, tend to play ex tempore a lot, and add in a lot of improvised passages, sometimes too many, to the extent of monotony at times.

The point is not to play it from the music, but to learn it from the music, and to learn the official version before branching out into unofficial versions.

(besides, you're wrong - most of Vivaldi looks like that sheet music, lol)